ISO 9177-2:2022 PDF Download
Standard EN Sample
Mechanical pencils for technical drawings - Part 2: Black leads - Classification and dimensions
Also Known As:
SKU111486479
Published by
International Organization for Standardization
ISO
Publication Date2022-06
Pages CountPages12
For mechanical pencils used for technical drawings, the ISO 9177-2:2022 standard gives a thorough classification and dimensional criteria for black leads. Black leads are divided into two categories by the standard: polymer leads and ceramic leads. The letter "P" stands for polymer leads, whereas the letter "C" stands for ceramic leads.
The compatibility and functionality of mechanical pencils used in technical drawing applications depend on these classification and dimension standards. The use of black leads is made easier by ISO 9177-2:2022's clear and consistent standards, which enable users to create technical drawings that are precise and of the highest caliber.
Details
History and complementary documents
History
| Edition | 2 |
| ICS Codes | 01.100.40 - Drawing equipment 97.180 - Miscellaneous domestic and commercial equipment |
| Language(s) | English |
| File Size | 266.2 KB |
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